Classic dual lens design provides 99.9% UV protection with a built in bifocal power of +2.0. Black frame with clear lens. Adjustable temple lengths and lightweight construction. Meets ANSI Z87.1, CSA Z94.3 and OSHA safety standards.3M 91192-00001 Readers Safety Glasses, Clear Lens, +2.0, Black. • 2.0 magnification • Soft universal fit nose piece • Adjustable length temples • Tough polycarbonate lenses • 2.0 magnification